Cross-dyeing cellulose fabric



' aware that h'itehertoit has ben suggested to c to simultaneously sizeand dye the fabric with Reissued May 14, 1929.

UNITED. sTArEs PATENT OFFICE.

JOHN: CECIL WATSON, OF PAWTUCKET, RHODE ISLAND, ASSIGNOR, BY AND MESNEASSIGNMENTS, TO B. B. 80 R. KNIGHT CORPORATION, OF PROVIDENCE, y RHODEISLAND, A. COBYORATION OF RHODE ISLAND.

CROSS-DYEING GELLULOSE FABRIC.

No Drawing. original flo 1,629,769, dated May 24,

/ cation for reissue filed July My invention relates to an improvedprocess of manufacturing an all cellulose textile fabric in contrastingcolors.- I employ the words cellulose textile fabric to include an allcotton fabric, or a fabric made from the type of rayonswhich containsubstantially the same percentage of cellulose as cotton or a greaterpercentage of cellulose and which have substantially the same ailinityfor the same types of dyestuifs as cotton namely,

viscose rayon, Capra-ammonium rayon and chardonet rayon, etc entirelyormixedjwith cotton. An application Serial No. 123,801is filed' of evendate herewith July 20, 1926, which discloses broadly the same inventionas this application' This applicationspecifically covers a secondspecies of the broad invention disclosed in Serial #123,801, applicationfiled July 20, 1926. Another Patent No.

1,629,770, issued May 24, 1927 covers another species of the broadinvention disclosed in said application.

' Hitherto where it has been desired to produce a fabric having a twocolor effect, either the warp or the filling have been wovenof 3 twodifi'erent materials such as cotton and silk which will taken the dye indifierent shades 'or amounts, or the warp or filling yarns have hadto'be separately dyed with mg colors have been made by treating the twodifferent colored dyes prior to weaving.

first step of a two step dyeing process,the nature of the ingredientthereof added to the r size being such that it will have no appreciableeffect upon its functioning, weaving the cloth in the usual manner witha filling and later treating the fabric with the second step of atwostep'dyeing process, which acts upon the prepared warp to form thedye thereon. I am add a direct or substantive dye tothe' size a one stepdyeing process. .As the actual water soluble dye has to be inserted withthe size it is obvious that in'a short space of time, L

an a suitable fashion for use in a loom and the size bath will becomemessy and the dyeing irregular and in addition a fast color is notproduced. p

Various types of two step dyeing processes 1927, Serial No. 123,502,filed my 20,- 1926. Appli- 25, 1928. Serial No. 295,341.

are known and it is immaterial for the purposes of my invention whattype of a two.

step dyeing process be employed so long as one is chosen wherein thefirst step has no ap preciable effect upon the functioning of the size,nor the size on' its functioning. The

treating it with a dye or a dye component and the second step consist oftreating it with an additional dye component and (C) Where the firststep consists of treatin the warp with a dyestufi' in .a true ormodified form andthe second step consists of treating it witln achemical having an oxidizing or a reducing action. The subject matter ofspecies B is specifically claimed in this application, name- 1y, where adye or dye component is inserted with the'size and a second dyecomponent applied to the entire fabric to combine only with the treatedwarp. 1

I am aware that cotton goods of contrastwarp or the filling threadsentirely independently of the slashing process with a tannin mordantbefore weaving the cloth in the usual manner with an unprepared filling.and then dyeing the fabric with a basic color which acts upon themordanted warp alone and, later dyeing the fabric with a direct colowhich acts on the unmordanted filling.

This process is impractical and expensive for it requires the extra costof an entirely distinct and separate step such as treating w1th anaphthol compound or other dye component employed independently of anysizing and prior to weaving. Thus theadded cost of this added step makesthis method of dyeing impractical. .The warp is first beamed then passedthrou h a slasher box to cover it with a size so t at the individualwarp threads will stand up during the frlctlon and wear they receive inthe weaving process.

The fabric is then woven in the usual mannecessity of purchasingextradyeing or mordanting equipment or without turning the cotton millinto a dye house. After weaving the fabric in the grey form it may thenbe sent to the dye house where the rest of my process may be completedto dye the fabric in contrasting colors with the usual dyeing equipmentby any of the well-known proeadapted to dye the warp threadswith arelaesses.

These and such other objects of my invention as may hereinafter appearwill be best understood from a description of various' embodiments of myprocess.

My invention includes simultaneously treating the warp threads in 'theslashing process with a suitable size for weaving and with a firstingredient of a two step dyeing process, each of which has noappreciable effeet on the functioning of the other, weaving the cloth inthe usual manner with a filling and then treating the entire fabric withthe second step of a two step dyeing process which acts upon theprepared warp to form the dye thereon. If desired the filling may beleft lwhite or it may also be dyed by again dyeing the fabric with a dyeof a different nature and color, which acts on the filling to dye it acontrasting color to the warp. lVhether the filling be left white orredyed it is obvious that it will always be of a contrasting color tothe dyed warp. v

A two step dyeing process may be selected wherein the first step thereofnormally room prises treating the warp not with a water soluble chemicalhaving non-dyeing properties, but with a real dye ingredient or adyestuff in a true or modified form or an intermediate dye component,which would have no appreciable effect on the size, nor the size I onits functioning. So far as-I am aware no one has hitherto conceived ofmanufacturing an all cellulose textile fabric having component sets ofwarp and filling threads of contrasting colors by treating beforeweaving one of said component sets of threads with a dye ingredient of atwo step dyeing process at any stage in the preparation of said set,then weaving said component set with the other component set to form thecloth and then forming the dyestuff on the prepared component set bytreating the fabric with a second step of the two step dyeing process,which acts upon the prepared component set to form the dye thereon. Theother component set may be either left white 1n a contrasting color tothe dyed component set or dyed in a contrasting color by againseparately dyeing the fabric with a dye of a different nature and colorwhich acts on the unprepared set to dye it a contrasting color to theprepared component set. If desired each component set may be treatedwith a different dye ingredient of a two step dyeing process and theentire fabric subjected to a second common step of the two step dyeingprocess, which will simultaneously impregnate each component set with adifferent dye stuff. It is thus obvious that the other component setnormally the one not sized may be either first dyed or prepared forsimultaneously forming the dyestufl' thereon with the other componentset after weaving or left unprepared. My invention is peculiarly of atwo step dyeing process in the same solution. This eliminates; the extracost of an entirely distinct and separate step, namely,

independently of any sizing and prior to Weaving of suitably treatingthe proper threads with its added cost. the composite process five stepsare neces sary. (1) To size the warp. (2) To treat the warp threadswith'a dye ingredient of a two step dyeing process.

(8) To treat the warp threads with, the second step of a two stepdyeingi process.

(4) To treat the filling threads with a dye ingredient of a two stepdyeing process.

('5 To treat the filling threads with the second step, of a two stepdyeing process.

Employing my invention however, where especially types of naphtholcompounds, or

'indigosols-or other stabilized soluble esterlike derivatives of Vatdyestuffs later to be described are employed it is obvious that thesefive steps may be out down to three, namely step one of sizing the warpthreads and step two of treating the warp threads with a dye ingredientof a two step dyeing process may be done simultaneously. Step fourof-treating the filling threads with a dye ingredient of a two stepdyeing process willhave to be done separately as usual. The sized andprepared warp threads and the prepared filling threads may be then wovenand step three namely, treating the warp threads with the second. stepofctheir respective two step dyeing process and in addition theirseparate step of their respective two step dyeing process may be donesimultaneously by treating the warp and the filling threads in thefabric with the same step.

At present in step five of treating the filling threads with This classof a two step dyeing process, namely where the first step in the twostep dyeing process comprises treating the mate; rial to be dyed with adye or dye ingredient divides itself into two general classes namely- Y(8) 1Where the second step comprises treating thefabric withan'additional dye or a dye component and,

(C) Where the second step in the dyeing comprises treatingthematerialdesired to be dyed with a chemical having anqoxidizing or areducing action to form the dyestufi' on the fabric;

I will now describe in detail arious embodiments of these differentclasses. This entire generic classis claimed in this application,whichspecifically claims dyestuffs of the generic sub-class Bheretofore'referred threads by treating them with a'dyeingrdi:

cut of a two-step dyeing process may be done at any point in the.preparation prior to weaving, I preferably so treat the warp threadswhile slashing and I will specifically describe this treatment in thisdescription of the application of the following dyes. As stated however,itis immaterial whether the filling be first dyed, separately preparedby treating it with a dye ingredient of a two step dyeing process orleft unprepared. I will ow describe specifically the application of thdyeing process of the'type ofdyestuifs normally included in classesB andC namely, where the warp is simultaneously slashed and treatecl with adye ingredient of atwo step dyeing process, whether. that dye in:gredient comprises a dyestufl' or an intermediate dye component, andwhether after weaving, the entire fabric is after treated with a dye orwith an intermediate dye component which couples with said first dye orintermediate, dye component to form a dye stuff impregnated on theprepared warp as in class B, or whether the dyestuif be impregnated onthe warp by treating the fabric with a water soluble chemical having anoxidizing or a reducing action as in class Perhaps the most importantclass of dyestuffs in this general class B are the developed colors.Applyingmy process to developed colors Isimultaneously treat the warp inthe slashing process with a size and with an intermedi'ate dye componentsuch as a naphthol compound, each of which has no appreciable effect onthe functioningof the other, weave the cloth in the usual manner with afilling and later on aftertreat the fabric with a 'second intermediatedye component such as'a to. Dyeing with a 'type of dyestuffhereindeveloped dye base to couple said components to form a' dyestufiimpregnatedon the prepared warp. My invention therefore makes itpossible to dye the warp or filling, also if desired in faster shadesthan hitherto thought possible in cellulose dyeing of this description.The. slasher solution may be prepared as follows: 25 pounds of sago orother suitable size are added to 50 gallons of water. To this bath isadded if desired '2 gallons of alizarine soluble oil. To this bath isalso added as an intermediate dye compo nent 6 pounds of naphthol A. S.(anilide of beta oxynaphtholic acid, no Schultz or color index number)and 4 pounds of dry caustic soda. These materials may then be boiledtogether for about twenty minutes in the size tank, after which 5 poundsof sodium thidsulphate crystals are added.

After the contents of the size tank have been mixed well, they are thenrun into the slasher box and the warp sized as usual. It is thus obviousthat the goods may be prepared for dyeing the warp with a developedcolor merely by adding a small proportion of an intermediate dyecomponent to the sizing mixture. In place pf sago, potato, corn or anysuitable sizing material may be employed, and in place. of naphthol,caustic soda andsodium thiosulphate, any other suitable dye water, towhich 2 gallons of hydrochloric acid may be added. After standingone-half hour in the mixing tub, a block of ice is inserted therein.After the mixture is cooled to about 40 F. 4 pounds'of'sodium nitrate orother suitable chemical is added. After standing one-half hour, l poundsof powdered alum are preferably added. Just prior to use, 7

. component with 1ts other necessary 1ngrepounds of powdered chalk arepreferably added, when the entire solution may be poured into the jig.The fabric is then .passed (1 through the 'jig for several minutes,sufiicient to thoroughly diazotize and develop the color on the warp.The strength and materials and time of dyeing, of course, depend tosomeextent upon the shade desired. It is obvious that in place of the fastred T. R. base and other chemicals described, other suitableintermediate dye co'mponentsorchemicals may be employed depending uponthe color or shading desired to be produced. This dye bath is then runoff, the goods, washed, preferably in the jig, or if desired, dried,singed and mercrized. If not mercerized, after the last wash, the goodsmay be re-dyed in the same jig preferably with a 3 or 4% solution of asubstantive or direct color of a different shade. After this, they maybe washed, dried and finished in the usual manner. If it is desired to.have the filling threads white in contrast to the dyed warp threads, thelast step of dyeing the fabric with a direct color may be dispensedwith.

Any suitable type of a naphthol compound may be employed. There haverecently come on the market various different types of new naphtholcompounds, which are derivatives of naphthol such. as the A. S. group,which is probably the best known which are aryl -armides or otherderivatives of beta oxynaphthoic-acidorcompounds which function insimilar fashion. .Any of these naphthols may be coupled with a secondintermediate dye component to form a dyestuff impregnated on thepreparedwarp. Infact different naphthols of this group may be coupled with thesame base or second intermediate dye component to form different coloreddyestufiis.

treating the warp in the slashing process with a naphthol A. S. S. WV.(beta-naphthalide of beta oxynaphthoic acid, no "Schultz or color indexnumber) and then treating the filling prior to weaving with a naphtholA. S. G. (diaceto-acetic-tolidide, no Schultz or color index number),then weaving the cloth in the usual manner and later after treating thefabric with a fast black L. Brbase (O-phene- 'tidene azo alpha naphthylamine, noSchultz or color index number), a black dye will be developedon the prepared warp and a brownish red dye will be developed on theprepared filling, both dyes of the normal fastnes'sof a developed dye.It is thus obvious that in employing my invention in this manner fastershades may be developed-on the filling, than is possible by merelydyeing the filling by after dyeing the entire fabric with a direct orsubstantive color. It is obvious that in place of naphthol any suitableintermediate dye component may be employed and in place of-fast red T.R. base or a fast black L. B.

base any suitable type of a second intermediate dye component may beemployed. If desired the stabilized diazo compounds which have recentlycome'upon the market may be employed as the second intermediate dyecomponent which' dissolve in water directly to form the couplingsolution without the necessity of anyflother chemicals or treatment. Inplace of naphthols or their derivatives any other suitable type ofintermediate dye components such as N. W. (1-4 alpha haphthol sulphonicacid) etc. may be employed to be coupled with a diazo component as thesecond step. If desired an intermediate dye component of the type ofprimuline (color index.

Thus, if desired very pretty fast color effects may be produced, such asby number 812, Schultz Number 616) may be em- With a naphthol' as asecond dye component will develop a fast red color on the treatedcomponent set, in a sense a reversal to the method specificallydescribed.

, I will now specifically describe the appli cation of class C of thetwo step dyeing process where the first ingredient of the two stepdyeing process comprises treating the fabric with a dyestuff modified orunmodified and the second step thereof comprises aftertreating thefabric with a chemical having an oxidizing or a reducing action. Themost important types of dyestuffs of this 'class include vat dyestuffsor their derivatives which as is well-known are among the fastestcolors. Any suitable type of vat dyestufi's may be employed. If the vatdyestuff be insoluble it may be adhered to the prepared warp with thesize and when the fabric is suitably aftertreated after weaving theinsoluble vat dyestuff will change into a leuco compound to dye the warpon withdrawal from the bath.

Perhaps the most important class of modified dyes which may be dyed inthis manner are the stabilized water soluble leuco compounds of vatdyestufis which have recently come on the market'commonly known asindigosols. Any suitable type of this general type of dyestuff may beemployed. What I preferably employ are the types of dyestuffs describedin U. S. Patents Nos. 1,448,251 and like derivatives of the leucocompounds of any suitable type of vat dyestuffs whether they be producedfrom indigo. as are the types now beingput on the market by SocietDurand & Huguenin S. A. or those derived from ,indanthrenes whichaccording to an article in The Journal of Dyers and Colorists for Feb.1925 are now being put on the market by the Scottish Dyes Ltd. Thisclass of ester-like derivatives whether they be produced from indigo orfrom indanthrenes or from any other vat dyestuffs are aftertreated 'todevelop the dyestuif on the fabric by reforming the dye by the action ofa suitable oxidizing agent. For the purposes of my invention however,any suitable type of a stabilized water soluble derivative of a vatdyestufl may be employedlike the dehydro-indigos as described in GermanPatent Nos. 17,477 220,173 237,2s2 239,314 which are later developed onthe fabric by reforming the dye by the action of a suitable reducinagent.

I will specifically describe the a plication of an indigosol such asindigosol 84B. (the soluble ester derivative of ciba blue 2B ortetrabrom indigo, color index number 1184.) for blue sold in America bythe General Dye-Stuffs Corporation, Carbic Color and Chemical Company,Inc., etc.- specifically applying it to the warp in the slashingprocess. 7 a

The slasher tank solution may be prepared as follows:

pounds of sago or other suitable size are added to gallons of Water. Tothis bath is added if desired 2 gallons of alizarine soluble. oil. Tothe bath is also added as the dye ingredient'of' thetwo step dyeingprocess 13 pounds of indigosol blue 04B .the

1 amount depending upon 1 the shade 'desired,

' dium nitrite equal in weight to the indigosol preferably previouslydissolved in about 3 gallons of water. These materials may then theboiled together for about 20 minutes in the size tank after which anamount of soused is added. After the contents have been mixed well theyare then run into the slasher box and the warp sized as usual. It isthus obvious that the goods may be prepared for developed on the warp.If other typesof vat dyeing the warp with a vat color by adding a smallproportion of a vat dyestufl, modified, or unmodified to, the sizingmixture. In place of sage, potato, corn, or any other suitable starch,flour or any other suitable sizing materials may be employed and inplace of indigosol 0413 any type of vatdyestufl modified or unmodifiedpreferably a stabilized water soluble ester-like derivative of the leucocompound may be employed. In

by any suitable 'aftertreatment depending on the nature of the vatdyestuif employed.

' Where an indigosol or any. water soluble ester-like derivative of avat dye 'stuff has been employed as the first dye ingredient, I

preferably reform the dyestufli' on the warp. by an action'ofa'suitable.oxidizingagent.

Although this may be'done in any suitable manner,it is preferably doneby passing the woven fabric through a jig. To reform the dyestuff byoxidation and to free the oxygen from the sodium nitrite preferablyadded to the first d e ingredient with the size, I preferably fill t ejig with a 2 Tw. sulphuric'acid,

when dyeing with an indigosol or like esterlike derivative the colorwill immediately be dyestuffs or their stabilized water solublederivatives be employed they may be suitably reduced to the desiredleuco compound in any welhknown manner, after which the dyestuflc' willbe reformed on the fabric by oxidation on exposure to the air. Anysuitable type of acid may be employed and any other suitable type of anoxidizing agent other than nitrite of soda may be employed. The

preferably in a jig or if desired dried and mercerized. If notmercerized after the last a wash the goods may be re-dyed in the samejig, preferably with a three or four percent solution of a substantiveor direct color of a different shade. After this they may be washed,dried and finished in the usual manner. If it is desired to have thefilling threads un-dyed and left a white in a contrasting color to thedyed warp the last step ofdyeing the fabric with a direct color may bedispensed with.- If it is desired toLdye the fillin threads a fastercolor than they may be dyed with a direct color. in a contrasting shade,it is obvious that the filling threads may also prior to weaving besimilarly treated with a different type of indigosol such as indigosolviolet A. Z. B. (thesoluble ester derivative of alizarineindigosolviolet B,-an indigoid vat color, having no Schultz or colorindex number and an unpublished chemical formula) The fabric is woven inthe usual mannemand later on passing the fabric through acid a bluedyestuff willbe developed on the warp :ind a helio dyestufli' will bedyedon the filling, t\hus as explained eliminating two of the fiVGMStQPShitherto necessary in dyeing of this description. v i

It is obvious that by simultaneously treat ing the warp in the slasherbox with a size and with a first step of a two step dyeing process' onthe function of the other weavin the cloth in the usual manner with thelling and treating the fabric with the second step of a two step dyeingprocess which acts on the prepared warp to form th ed a process whichmaybe readily put in the cotton mills without extra equlpment and that Ihave shown for the first time a method of dyeing cellulose fabrics incontrasting colors faster than any hitherto used for this purpose.

As explained, my invention broadly includesthe step in the process ofmanufacturing an all cellulose textile fabric having component sets ofwarp and filling threads of contrasting colors, which comprises,treating beeach of which has no appreciable effect e dye thereon, thatit'reduces the cost of manufacturing an fore weaving pne ofsaidconiponent sets of threads with a dye ingredient of a two stepdyeing process at any stage in the process of manufacture thereof or.both sets with a different dye ingredient of a two step dyeing process.Where this is done other than inthe size bath however, it is obviousthat the cotton mills will have to be provided with additional tanks orother equipment Where it is desired to thus treat the Warp or thefilling threads other than in the slashing process they maybe treated inexactly the same fashion as hltherto explained with the same strengthsolutions omitting the addition of the size to the first step.

It is obvious that in place of treating the entire warp or filling withth'first step of a two step dyeing process only parts of them may be sotreated and I therefore employ the phrases in the claims component setsof warp and'filling threads to include the entire warp or fillingthreads or any desired part thereof. I employ the words cellulosetextile fabric to include an all cotton fabric or a fabric made from thetype of rayons' which contain substantially the same percentage ofcellulose as cotton or a greater percentage of cellulose and which havesubstantially the same aflinity for the same type of dyestufl's ascotton namely, viscose rayon,-

cupra-ammonium rayon 'and chardonet rayon, etc. entirely or mixed withcotton.

In the claims I employ the phrases dye component or intermediate dyecomponent to include any intermediate when not in the form of thedyestutf formed on the fibre as the final result of my process, butwhich, has to be coupled with another dye component to form the dyestuff formed on the fibre as the final result ofmy process and which mayor may notof itself have intrinsic dyeing properties. In the claims Iemploy the phrase dye ingredient to include a dye stuff in true ormodified form or an intermediate dye component, which of itself has someintrinsic dyeing properties, but which must be later aftertreated tochange it into the dye stuif actu ally formed on the fibre as the finalresult of 7 my :process. In the claims I employ the phrase developed dyepreparatory ingredient to include any substance, which will prepare afibre of the type claimed herein, so that it may later take a developeddye by any of the well known developed processes. I v V I employ theword Weave in the-claims in its broad sense as defined in Websters' Dicetionary of 1866' which defines it as follows: 1..To unite, as threads ofany .kind, in such a manner as to form a texture; to entwine orinterlace into a fabric as to weave wool, silk and the like; hence,-tounite by close connec 'tion or mixture, to uniteintimately 2. To

form, as cloth, by interlacing threads; to compose, as a texture of anykind, by putting together textile materials; hence, to form'into .afabric; to compose) It is understood that my invention is not limited tothe specific processes and products described and the various deviationsmay be I made therefrom without departing from the spirit and scope ofthe appended claims.

What I claim as new and desire to secure by Letters Patent is:

dye dyeing .1. The herein described improved process of manufacturing anall cellulose textile I fabric having component sets of warp and fillingthreads ,of contrasting colors which comprises treating before weavingone of said component sets with a dye ingredient of a two step dyeingprocess, treating the Other component set with a different dyeingredient of a similar two step dyeing process, then weaving saidcomponent sets to form the fabric and treating the fabric with a secondcommon ingredient of the two step dyeing process which acts on onecomponent vset to impregnate it with a dye stuff of one color and actson the other component set to impregnate it with a dye stuff of adifferent contrasting color. I

- '2.--The herein described improved process of manufacturing an allcellulose textile fabric in contrasting colors, which comprisessimultaneously treating the Warp in the slashing process with a size andwith a dye ingredient of a two step dyeing process, each of which has noappreciable eifect on the functioning of the other, treating the fillingwith a difl'erent dye ingredient of a similar two step dyeing process,then weaving said warp and filling in the usual manner to form thefabric and treating the fabric with the common ingredient of the twostep dyeing process which acts on the warp to .impregnate it with a dyestuff of one color and which acts on the filling to impregnate it with adye stufi' of a contrasting color. f

3. The herein described improved process of manufacturing an allcelluloseftextile" 4. The herein described improved process I ofmanufacturing an all cellulose textile fabric having component sets ofwarp and filling threads of contrasting colors which comprises treatingbefore weaving one of .said component sets of threads with anintermediate dye component, then weaving said component set with theother component set to form the fabric and, treating the fabric with asecond intermediate dye component to couple said components to form adye stuif impregnated on the prepared set.

5. The herein described improved process .fabric having component setsof warp and of manufacturing an all cellulose textile fabric havingcomponent sets of warp and filling threads of contrasting colors whichcomprises treating before weaving one of said component sets with an,intermediate dye component, treating the other component set with adifferent intermediate dye component, then weaving said component setwith the other component set to form the fabric and treating thefabricwith a common intermediate dye component to couple it with the dyecomponent on one component set to impregnate it with dye stuff of onecolor and to couple it wi h the dye component on the other component setto impregnate' it with a dye stuff of a different contrasting color.

6. The herein described improved process of manufacturing an allcellulose textile fabric in contrasting colors, whichcomprisessimultaneously treating the, warp in the slashing process with a 'sizeand with an intermedlate dye component, each of which has no appreciableeffecton the functioning of the other, weaving the fabric in the, usualmanner with a filling, treating the fabric with a second intermediatedye component to .couple said components to form a dye stuff impregnatedon the prepared set, and again 'dyeing the fabric with a dye of adifferent nature and color, which acts on the unprepared component set,to dye it in a contrasting color to the prepared componentset. 7. Theherein described improved process of manufacturing an all cellulosetextile fabric in contrastin colors, which comprises simultaneously treaing the warp in the slashing process with a size and with anintermediate dye component, each of which has no 'appreciable effect onthe functioning of the other, weaving the fabric in the usual mannerwith a filling and treating the fabric with a second intermediate dyecomponent to couple sai components to form a dye stufi' impregnated onthe prepared warp; 8. The herein described improved process ofmanufacturing an all cellulose textile fabric in contrastingcolors,which comprises simultaneously treating the warp in .the slashingprocesswith a size afid with an intermedlate dye component, each ofwhich has no appreciable effect on the functioning of the other,treating the fillingwith a dif ferent intermediate d e component, thenweaving said warp an I filling in the usual manner to form the fabricand treating the fabric with a common intermediate dye component-tocouple it with the dye component on one component set to impregnate itwith a dye stuffof one color and to couple it with the dye component onthe other component set to impregnate. it with a dye stuff of ,,adifferent contrastingcolor.

9. The herein described'improvedprocess of manufacturing an allcellulose textile fabric having component sets of warp and fillingthreads of contrasting. colors which comprises treating before weavingone of said component sets with a developed dye preparatory ingredient,treating the other component set with a different-developed dyepreparatory ingredient, then weaving said component sets to form thefabric and treating the fabric with a developed dye base, which acts onone component set to impregnate it with a dye stuff of one color andacts on "the other component set to impregnate it with a dye stuff of adifferent contrasting 'color. v 10. The herein described improvedprocess of manufacturing an all cellulose textile fabric in contrastingcolors, which comprises sin'iultaneously treating the warp in theslashing process with a size and with a 'developed dye preparatoryingredient, each of which has no appreciable eflect on the funcacts onthe filling to impregnate it with a 'dye stuff of a contrasting color.

11. The herein described improved proc ass of manufacturing an allcellulose textile fabric having component sets of warp and fillingthreadsof contrasting colorsmvliich comprises treatlng before weavingone of said component sets Wlllll ib solution of a naphthol, weavingsaid component setwith the other component. set to form the fabric,treating the fabric with a diazotized base, which acts on the preparedcomponent set dyeing the fabric with a direct dyeof a difierent shade,which actson the unpre pared component set to'dye'it a contrasting colorto the prepared component set.

12. The herein described improved proc-- filling threads of contrasting;colors, which comprises treating before weaving one of to impregnate itwith a dye stuff and again said component sets of threads with a solution of a naphthol, their weaving said C0111! I ponent set with theother component setto form the fabric, and treating the fabric with a,-dia-zotized base, which acts on the prepared component set to impregnateit with a dye stuff.

' '13. The herein described improved process of manufacturing an allcellulosetcxtllcfabric having component sets of warp and filling threadsof contrasting colors which comprises treating before weaving one ofsaid component sets with a" solution of a naphthol treating the othercomponent set with a solution of a different naph'thol, then color andacts on the other'component set to impregnate it with a dye stuff of a,different contrasting color. f i

14. The herein-described improved process of manufacturing an allcellulose textile 10 fabric in contrasting colors,.which comprisessimultaneously'treating the .warp in the slashing process with a sizeand with a solution of a naphthol, each of which has no appreciableeffect on the functioning of the other, weaving the fabricin the usualmanner with a filling, treating the fabric with a diazotized base, which.acts on the warp to impregnate it with a d e stuff and again dyeing thefabric with 2. ye of a dif- 0 ferent nature and color which acts uponthe unprepared filling to dye it a contrasting color to the warp. I

15. The herein described improved procr cess of manufacturing anallcellulose textile fabric in contrasting colors, which 'comprisesimultaneously treating the warp 1n the slashing process with a size andwith a solution of naphthoheach of which has no appreciable effect onthe functioning of the 0 other, weaving the fabric in the usual mannerwith a filling, and treating the fabric with a diazotized base, whichacts on the warp to impregnate it with a dye-stuff. v

16. The herein described improved proccess of manufacturing an allcellulose textile fabric in contrasting colors, which com-" prisessimultaneously treating the warp with a size and with a solution ofanaphthol, each of which has no appreciable ef 40 feet on thefunctioning of the other, treating the filling with a solution of adifferent naphthol, then weavingasaid warp and filling in the usualmanner to form the fabric and treating the fabric with a diaz'otized'base, which acts on. thewarp to impregnate it with'a' dye stuff of'onecolor'and which acts on the filling to impregnate it with a dye stuff ofa contrasting color. 17. The herein described improved step in theprocess of manufacturing an all cellulose textile fabric in contrastingcolors, which comprises simultaneously treating the warpdn the slashingprocess with-a size and with a solution of a naphthol, each of which hasno appreciable effect upon the functioning of the other.

18. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component 0' sets of'threads,one of said component'sets I of threads being impregnated witha dye ingredient of a two step dyeing process and another of saidcomponent sets of threads being impregnated with a different dye ingre-5 dient of a similar two step dyeing process.

19. An all cellulose textile fabric in the gray state made up" ofcomponent sets of threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with anintermediate dye component and another of said component sets beingimpregnated with a different intermediate dye component. I

20. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interworen with other component sets ofthreads, one of said component sets of threads being impregnated with anintermediate dye component.

21 An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with anaphthol and another ofsaid component sets being impregnated with adiflerent naphthol.

22. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component setsof-threads, one of said component sets of threads being impregnated witha naphthol.

r 23. The herein described improved process of manufacturing an allcellulose textile fabric having component setsof warp and fillingthreads of contrasting colors which comprises treating before weavingone of said component sets with a stable dye ingredient of a twostepdyeing process, treating the other component set with a differentstable dye ingredient of a similar twostep dyeing process, then weavingsaid component sets to form the fabric and treating the fabric with asecond common ingredient of the two step. dyeing process which acts onone com ponent set to impregnate it with a dye stuif of one color andacts on the other'component set to impregnate it with a dye stuff of adifferent contrasting color. v

24. The herein described improved process of manufacturing an allcellulose textile fabric having component sets of warp and filling,

threads of contrasting colors which comprises treating before weavingone, of said component sets of threads with a stable intermediate dyecomponent then weaving said component set with the other component setto form the fabric and, treating the fabric with a second intermediatedye component to couple said components to form a dye stuff impregnatedon the prepared set.

25. The herein described improved process of manufacturing an allcellulosetextile fab ric having component sets of warp and fillingthreads of contrasting colors which comprises treating before weavingone of said component sets with a stable intermediate dye component,treating the other componentset ric having component sets of warp andfilling threads of contrasting colors, which comprises treating beforeweaving one of said component sets of threads with a solution of astable naphthol, then weaving said component set with the othercomponent set to form the fabric, and treating the fabric with adiazotized base, which acts on the prepared component set to impregnateit with a dye stufi'.

27. The herein described improved process of manufzwturing an allcellulose textile fabric having component sets of warp and fillingthreads of contrasting colors which comprises treating before weavingone of said component sets with a solution of a stable naph thol,treatin the other component set with a solution of a different stablenaphthol, then weaving said component sets to form the fabric andtreating the fabric with a diazotized base, which acts on one componentset to impregnate it with a dye stuff of one color and acts on the othercomponent set to impregnate it with a dye stuff of a differentcontrasting color.

28. The herein described improved process of manufacturing an allcellulose textile fabric in contrasting colors, which comprisesimultaneously treating the warp in the slashing process with a size andwith a solution of a stable naphthol, each of which has no appreciableefiect on the functioning of the other, weaving the fabric in the usualmanner with a filling and treating the fabric with a diazotized base.which acts onthe warp to impregnate it with a dye stuff.

29. The herein described improved process of manufacturing an allcellulose textilefabric in contrasting colors, which comprisessimultaneously treating the warpwith a size and with a solution of astable naphthol, each of which has no appreciable effect on thefunctioning .of the other, treating the filling with. a solution of adilferentstable naphthol, then weaving said warp and filling in theusual manner to form the fabric and treating the fabric with adiazotized base, which acts on the warp to impregnate it with a dyestulf of one color and which acts on the filling to impregnate it with adye stuil of a contrasting color.

30. The herein described improved step in the process of manufactur ngan all. cellulose textile fabric in contrasting colors, which comprisessimultaneously tre'atingthe warp in the slashing process with a asolution of a stable naphthol, each of which has no appreciable effectupon the functioning of the other.

31. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with astable dye ingredient of a two step dyeing process and another of saidcomponent sets of threads being impregnated with a different stable dyeingredient of a similar two step dyeing process.

32. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with astable intermediate dye component and another of said component setsbeing impregnated with a different stable intermediate dye component.

33. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with astable intermediate dye component.

34. An all cellulose textile fabric in the.

gray state made up of component sets of threads interwoven with othercomponent sets of threads, one of said component sets of threads beingimpregnated with a stable naphthol and another of said component setsbeing impregnated with a different stable naphthol.

35. An all cellulose textile fabric in the gray state made up ofcomponent setsof threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with astable naphthol.

36. The herein described improved process of manufacturing an allcellulose textile fab-" ric having component sets of warp and fillingthreads of contrasting colors, which comprises treating before weavingone of said component sets of threads with a solution of a naphthol ofthe A. S. group, thenweaving said component set with the other componentset to form the fabric, and treating the fabric with a diazotized base,which acts on the prepared component set to impregnate it with a dyestuff. m

37. The herein described improv d process of manufacturing an allcellulose textile fabric having component sets of warp and fillingthreads of contrasting colors which comprises treating before weavingone of said component sets with a solution of a naphthol of the A. S.group, treating. the other component set with a solution of a differentnaphsize and with I thol of the A. S. group, then weaving said componentsets to form the fabric and treating the fabric with a diazotized base,which acts on one component set to impregnate it with a dye stuff of onecolor and acts on the other component set to impregnate it with a dyestuff of a different contrasting color.

38. The herein described improved process with a diazotized base, whichacts on the warp to impregnate it with a dye stuff.

39. The herein described improved process of manufacturing an allcellulose textile fabric in contrasting colors, which comprisessimultaneously treating the warp with a size and with a solution of anaphthol of the A. S.

group, each of which has no appreciable effect on the functioning of theother, treating the filling with a solution of a different naphthol ofthe A. S. group, then weaving said warp and filling in the usual mannerto form the fabric and treating the fabric with a diazotized base, whichacts on the warp to impregnate it with a dye stuff of one color andwhich acts on the filling to impregnate it with a dye stuff of acontrasting color.

40. The herein described improved step in the process of manufacturingan all cellulose textile fabric in contrasting colors, which comprisessimultaneously treating the warp in the slashing process with a size andwith a solution of a naphthol of the A. S. group, each of which has noappreciable effect upon the functioning of the other.

41. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other component sets ofthreads, one of said component sets of threads being impregnated with anaphthol of the A. S. group and another of said component sets beingimpregnated with a differ ent naphthol of the A. S. group. v

42. An all cellulose textile fabric in the gray state made up ofcomponent sets of threads interwoven with other, component sets ofthreads,.one of said component sets of threads being impregnated with anaphthol of the A. S. lgroup. i

In testim ny whereof I afiix my signature.

JOHN CECIL WATSON.

